发明名称 |
Keypad for portable telephone and manufacturing method thereof |
摘要 |
A keypad for a portable telephone and manufacturing method thereof is disclosed. The method comprises the steps of printing characters on a transparent, planar film; pre-forming the planar film through a pressing process such that the planar film has a predetermined shape including a plurality of depressions; punching slits in the pressed planar film around the depressions; filling liquid silicone rubber into the depressions of the pressed planar film; forming a keypad by pressing the silicon rubber in a metal mold so as to fabricate an integrated keypad in which keys are interconnected; and trimming an outer periphery of the formed keypad according to a predetermined keypad shape.
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申请公布号 |
US2001014152(A1) |
申请公布日期 |
2001.08.16 |
申请号 |
US20010840321 |
申请日期 |
2001.04.23 |
申请人 |
YOU EAL ELECTRONICS CO., LTD KOREA CORPORATION |
发明人 |
YANG YOON-HONG |
分类号 |
H01H13/14;H01H9/18;H01H11/00;H01H13/70;H01H13/702;H04M1/02;H04M1/23;(IPC1-7):B31F1/00;H04M9/00 |
主分类号 |
H01H13/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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